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professor also mentioned an artide ( )by Zhu ZiqingA.supposed to have been written B.supposed to be written C.supposing to have been written D.supposing to be written

题目详情
professor also mentioned an artide ( )by Zhu Ziqing
A.supposed to have been written B.supposed to be written
C.supposing to have been written D.supposing to be written
▼优质解答
答案和解析
A be supposed to 结构 ,应该做某事 ,非谓语选择 supposed to
to have been done 是 不定式的完成式 ,表示动作发生在主句谓语动作之前.